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2CTB803871R1200 ABB OVR T2 40-440 P QS Type 2 Surge Protective Device
ABB 2CTB803871R1200 OVR T2 40-440 P QS is a single-pole pluggable QuickSafe Type 2 surge protective device with 440 V AC maximum continuous operating voltage, 40 kA maximum discharge current, 20 kA nominal discharge current and 1.8 kV voltage protection level.
£77.24
Why Choose the ABB OVR T2 40-440 P QS Surge Protective Device?
The ABB OVR T2 40-440 P QS 2CTB803871R1200 is a single-pole Type 2 surge protective device (SPD) from ABB's OVR range, designed to protect low-voltage electrical installations against transient overvoltages caused by indirect lightning effects and switching events. Its compact modular format makes it suitable for installation in main and sub-distribution boards.
The OVR T2 40-440 P QS has a maximum continuous operating voltage Uc of 440 V AC, a nominal discharge current In of 20 kA and a maximum discharge current Imax of 40 kA, based on the standard 8/20 µs surge-current waveform. Its voltage protection level Up is 1.8 kV, helping limit transient voltage reaching downstream equipment.
ABB's QuickSafe (QS) design combines pluggable construction with improved safety and convenient maintenance. The device occupies only 17.8 mm of DIN-rail width, features a response time below 25 ns and uses the replaceable ABB OVR T2 40-440 C QS cartridge, making it a practical solution for commercial, industrial and building electrical distribution systems.
Key Advantages
- Dedicated Type 2 protection against transient overvoltages in low-voltage distribution systems.
- 40 kA maximum discharge current (Imax) for robust surge-current handling.
- 20 kA nominal discharge current (In) using an 8/20 µs waveform.
- 440 V AC maximum continuous operating voltage for compatible electrical networks.
- QuickSafe pluggable construction supports safer, straightforward maintenance.
- Compact 17.8 mm single-module width conserves valuable DIN-rail space.
Key Features
- ABB OVR T2 surge protection range.
- Type 2 / Class II surge protective device.
- Single protected pole.
- 440 V AC maximum continuous operating voltage Uc.
- 40 kA maximum discharge current Imax.
- 20 kA nominal discharge current In.
- 1.8 kV voltage protection level Up.
- QuickSafe (QS) technology with pluggable cartridge construction.
- <25 ns response time.
- Compatible with TT, TN-C, TN-S and IT low-voltage distribution systems.
Compact QuickSafe Type 2 Surge Protection
Type 2 surge protective devices are designed to discharge surge currents generated by indirect lightning strikes and other transient events affecting low-voltage power distribution networks. They are typically installed in main distribution switchboards and sub-distribution boards, where they limit transient voltage before it reaches sensitive downstream equipment.
The ABB OVR T2 40-440 P QS combines a 40 kA Imax, 20 kA In and 1.8 kV Up with ABB QuickSafe technology. Its single-module pluggable design enables a worn cartridge to be replaced without changing the complete base assembly, supporting efficient maintenance throughout the installation's service life.
Typical Applications
- Main electrical distribution switchboards.
- Sub-distribution boards and consumer electrical panels.
- Commercial building electrical installations.
- Industrial control and distribution panels.
- TT, TN-C, TN-S and compatible IT distribution systems.
- Protection of automation and sensitive electronic equipment.
- Installations requiring compact DIN-rail Type 2 surge protection.
Technical Specifications
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| Remote Signal | No | |
|---|---|---|
| Device Type | Surge protection device | |
| SPD Type | Type 2 | |
| Poles | 1-pole | |
| Series | OVR T2 QuickSafe | |
| Order code | 2CTB803871R1200 | |
| EAN | 3660308519627 | |
| Product group | Surge Protection Devices | |
| Product type | Type 2 surge protective device | |
| Arrester class | Class II | |
| Number of protected poles | 1 | |
| Compatible distribution systems | TT / TN-C / TN-S / IT | |
| Nominal AC system voltage | 400/690 V AC | |
| Maximum continuous operating voltage Uc | 440 V AC | |
| Maximum discharge current Imax (8/20 µs) | 40 kA | |
| Nominal discharge current In (8/20 µs) | 20 kA | |
| Total discharge current | 40 kA | |
| Voltage protection level Up (L-PE) | 1.8 kV | |
| Short-circuit withstand rating | 100 kA | |
| Response time | <25 ns | |
| Ground residual current | <70 µA | |
| Construction | Pluggable | |
| Technology | QuickSafe (QS) | |
| Replacement cartridge | OVR T2 40-440 C QS, 2CTB803876R0400 | |
| Mounting | 35 mm DIN rail | |
| Solid conductor range | 2.5–25 mm² | |
| Stranded conductor range | 2.5–16 mm² | |
| Maximum backup protection | 125 A | |
| Maximum installation altitude | 2000 m | |
| Fire resistance | UL 94 V-0 | |
| Dimensions (H × W × D) | 88 × 17.8 × 58 mm | |
| Net weight | 120 g | |
| Standards | IEC 61643-11 / EN 61643-11 |
Frequently Asked Questions
What is the ABB OVR T2 40-440 P QS?
The ABB 2CTB803871R1200 is a single-pole Type 2 / Class II surge protective device with QuickSafe pluggable construction, designed to protect compatible low-voltage distribution systems against transient overvoltages.
What are the discharge current ratings of the OVR T2 40-440 P QS?
The device has a nominal discharge current In of 20 kA and a maximum discharge current Imax of 40 kA, both based on an 8/20 µs surge-current waveform.
What is the maximum continuous operating voltage of 2CTB803871R1200?
The ABB 2CTB803871R1200 has a maximum continuous operating voltage Uc of 440 V AC.
Can the cartridge in the ABB OVR T2 40-440 P QS be replaced?
Yes. The SPD has a pluggable QuickSafe construction and uses the ABB OVR T2 40-440 C QS replacement cartridge, order code 2CTB803876R0400.
Which electrical distribution systems are compatible with the OVR T2 40-440 P QS?
The ABB OVR T2 40-440 P QS is specified for compatible TT, TN-C, TN-S and IT low-voltage distribution systems and provides a voltage protection level of 1.8 kV.
Trusted QuickSafe Surge Protection from ABB
ABB OVR QuickSafe surge protective devices provide electrical designers, installers and maintenance professionals with compact, pluggable protection against transient overvoltages, combining robust surge-current capability with straightforward DIN-rail integration and servicing.
